How do I get HP L2105tm touchscreen to work

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I have FC 17 running. and the touch screen function of the monitor does not work.
the HP site says there is no driver.
:Y
However,
% lsusb
shows the L2105tm coming in as a
QUANTA TouchScreen
% grep QUANTA /var/log/Xorg.0.log
shows it as /dev/input/mouse1
The other 3button mouse comes in as /dev/input/mouse0
%xinput
shows both mice but the touchscreen does not work.
% xinput test ...
works for the mouse, but no joy with the touchscreen.
Any ideas on how to get this to work?
Do I need a /etc/udev/rules.d/99thingie.conf file?
Do I need a rule in /etc/X11/xconf.d/
(HowTos)